Waterproof building-block.



No 865,654. PATENTED SEPT. 10, 1907. H. NOAGKI& H. MARING. WATERPROOF BUILDING BLOCK.

APPLICATION IILED MAR 22. 1906 m u t m w M 9 H 7 W w m v M a Q UNITED STATES PATENT OFFICE.

HUGO NOAOK, OF STAMFORD, AND HERMANN MARING, OF DARIEN, CONNECTICUT WATERPROOF BUILDING-BLOCK.

To all whom it may concern:

Be it known that HUGO NoAcK, a citizen of the United States, and HERMAXN MAKING, a subject of the Emperor of Germany, residing, respectively, at Stamford and Darien, county of Fairfield, State of Connecticut, have invented a new and useful lvaterproof Building-Block, of which thefollowing is a specification.

This invention relates to the manufacture of artificial stone or concrete building blocks and has for its object to provide building blocks which shall be light and inexpensive to produce, durable, easy to lay and thoroughly water-proof in use.

It has heretofore been a serious objection to the use of artificial stone or concrete building blocks that no matter of what material they were made or how thick, they were not impervious to moisture.

Our present invention enables us to produce building blocks of this character so constructed as to wholly prevent the passage of moisture through them, thus adaptingartificial stone building blocks to general'use' both in the foundations and walls oi buildings and enabling us to erect very solid and strong walls with any required ornamentation and at a minimum expense. This we accomplish by the construction and combination of parts substantially as hereinafter described and claimed.

In the accompanying drawing forming a part of this specification, Figures 1, 2 and 3 are plan views of sections of walls, illustrating the use of our novel building blocks, these views illustrating slightly varying styles of blocks in which the inner and outer walls and the cross pieces are molded'irrtegral. Fig. 4 shows the structure of the wall in which the bases of the inner members of the blocks lie higher than the bases of the outer members so that the horizontal joints in the completed walls are not opposite each other.

It is to be understood that the outer walls of the blocks may be molded to any required ornamental design or may be given a rough ashler finish.

10 denotes the inner walls of the blocks, 11 the outer walls, 12 cross pieces, 13 spaces bounded by the inner and outer walls and the cross pieces and 21 spaces be tween the cross pieces.

Specification of Letters Patent.

Application filed March 22,1906- Serial No. 307,428.

Patented Sept. 10, 1907.

The walls and cross pieces may be made of any suitable material for artificial stone, it being wholly unimportant, so far as the principle of the invention is concerned, of what material or mixture the blocks and cross pieces are molded.

The forms illustrated in Figs. 1, 2, and 3 differ only in the number of cross pieces in each block andthe size and number of the spaces between the cross pieces. An important feature of our improved construction is that the cross pieces extend from the inner walls down- Ward and outward to the outer walls, and the outer member of each block is in a plane below that of the inner member when set in a wall and the essential feature is that the cross pieces in all the forms extend downward and outward obliquely to the horizontal plane and are provided with spaces 21 between them, and that the cross pieces are rigid with the wall members. The result is that any moisture that may penetrate the outer wall will work downward by gravity and will not follow the oblique cross pieces upward, so that in use the inner walls remain perfectly dry.

Having thus described our invention we claim:

1. A building block consisting of inner and outer wall members and a continuous connecting cross piece extending obliquely to the horizontal plane between said wall members and'of the same material as the wall members and rigid therewith, said two wall members beingstcpped in relation to each other, whereby they occupy ditl'erent horizontal planes when the block is set in a wall witlrits surfaces of greater area in vertical position.

2. A building wall consisting of blocks each comprising an inner and an outer wall member and a continuous connecting, cross piece extending downward and outward between said wall members leaving spaces between the cross pieces, said cross piece being of the same material 

